14
TROUBLESHOOTING
1. Sulfides in the water
1. Use Pressure Reducing Valve and Pressure Relief
Valve
2. See page 8, "Closed System"
1. Replace thermostat
2. Replace thermostat
PROBLEM
NO HOT WATER
INSUFFICIENT HOT WATER
HIGH OPERATION COSTS
SLOW HOT WATER
RECOVERY
DRIP FROM RELIEF VALVE
POSSIBLE CAUSE(S)
1. No power to heater
2. High Temperature Limit Switch open
3. Defective thermostat
1. Defective thermostat
2. Defective element
3. Improper calibration
4. Thermostat set too low
5. Sediment or lime in tank
6. Heater too small for job
7. Wrong piping connections
8. Leaking faucets
9. Wasted hot water
10. Long runs of exposed pipe
11. Hot water piping on outside wall
1. Improper Calibration
2. Thermostat set too high
3. Sediment or lime in tank
4. Heater too small for job
5. Wrong piping connections
6. Leaking faucets
7. Wasted hot water
8. Long runs of exposed piping
9. Hot water piping in exposed wall
1. Defective element
1. Excessive water pressure
2. Closed system
CORRECTIVE ACTION
1. Turn on electrical switch. Check for blown fuses or
tripped breaker
2. Reset. Check for source of trouble and correct
3. Replace thermostat
1. Replace thermostat
2. Replace element
3. Replace thermostat
4. Set thermostat to desired temperature
5. Drain. Determine if water treatment is needed
6. Install adequate water heater
7. Correct piping
8. Repair faucets
9. Advise customer
10. Insulate piping
11. Insulate piping
1. Replace thermostat
2. Set thermostat to desired setting
3. Drain. Flush-Provide water treatment if needed
4. Install adequate heater
5. Correct piping
6. Repair faucets
7. Advise customer
8. Insulate piping
9. Insulate piping
THERMOSTAT FAILS TO
SHUT OFF
WATER ODOR
1. Defective thermostat
2. Improper calibration
1. Replace element
1. See page 11, "Water Odor"
